Zatovs'kyj I. The synthesis and research double phosphates of titanium (III) and vanadium (III)

The dissertation is devoted to questions of synthesis double phosphates of the titanium (ІІІ) and vanadium (ІІІ) in the melten phosphates of alkaline metals. The dissoulution and interaction TiN, Ti2O3 and V2O3 in the melten phosphates systems MI2O-P2O5 is investigated. The formation in the melten phosphates of the double phosphates MIMIIIP2O7 (MIII - Ti, V), MI3VIII2 (PO4)3, NaTiIIITiIV(P2O7)2, K2TiIIITiIV(PO4)3, Li1+xТіхIIITi2-хIV(PO4)3 (х = 0-2) is established. There was investigaated the influence of hte molecular proportion MI2O:P2O5, temperatures and other factors on stabilization Ti3+ and V3+ in the melten phosphates systems and structure of formed complex double phosphates. The structure of NaTiIIITiIV(P2O7)2, K2TiIIITiIV(PO4)3, Li1,61TiIII0,61TiIV1,39(PO4)3 and KTiIIIP2O7 was determined. There was investigaated thermal stability of the synthesized phosphates. The method of synthesis and monocrystals growth of double phosphates of are developed.